Platen-press gage



W. H. BOSER.

'PLATEN PRESS GAGE.

APPLICATION FILED IAN. so. 1919.

1,333,829. Patented Mar. 16, 1920.

a yv W 3 7115 221721): 493%M UNIT STATES PATENT OFFICE. 1

WILLIAM H. nosnnjor MINNEAPOLIS, MINNESOTA;

PLATEN-PRESS GAGE.

Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Platen- Press Gages; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide a simple and highly efficient platen press gage; and to such ends, generally stated, the invention consists of the novel devices and combinations of devices herein after described and defined in the claims.

t is a well known custom in platen tened to the platen by well known means Hitherto, it has been the practice to apply quads to the tympan to position the sheet of paper, card, envelop, or other article that is to receive the print. In practice, it has been found that these quads are liable to be ripped off or to work out of position, and moreover, it is not an easy matter to position them so that they will accurately locate or efficiently hold the article while it is being printed.

My invention provides mechanical gages which are adapted to be very quickly and accurately applied to the tympan sheet, and properly adjusted so that they will accurately position and securely hold, the sheet or other article to receive the print.

The preferred form of the improved gage is illustrated in theaccompanying drawings wherein like characters indicate like parts throughout the several views.

Referring to the drawings,

Figure 1 is a side elevation of the gage;

Fig. 2 is a plan view thereof;

Fig. 3 is an end elevation of the gage looking at the same from the left toward the right, in respect to Fig. 2;

Fig. t is a bottom plan view of the front end or the left hand portion of the gage, as shown in Fig. 2, some parts being broken away;

Fig. 5 is a section on the line 55 of Fig. 2 showing the gage applied to the tympan sheet;

Specification of Letters Patent.

Patented Mar. 16,1920.

Application fi1ed-January 30, 1919. Serial No. 273,989.

Fig. 6 is a transverse verticalsection taken on the line 66 of Fig. 5; and

Fig. 7 isa small-diagrammatic view illustrating the proper arrangement of a number of gages on the tympan sheet. 7

The clamp is made up of base and top members 8 and 9 of plate-like form having, respectively, overlapped hinge ears 10 and 11 at their intermediate portions connected by a hinge pin 11. The-lower plate 8 is of rectangular form while the upper plate 9, preferably, has its rear corners cut away, as best shown in Fig. 2, and at its front edge, it is provided with a downwardly projected clamping flange 12 that extends along the front edge of the lower plate and has downwardly turned end extensions 12 that extend short distances along the side edges of said lower plate.

Downward movement of the front edge of the top plate 9 is limited to stop lugs 13 shown as formed as integral extensions of the hinge cars 10. A clamping screw- 14; works freely through a perforation in the central front portion of the top plate 9 and has threaded engagement with the cl ampingbar '15 that is located ust inward of the clamping flange 12. .lVorking with threaded engagement through the central rear portion'of the topplate 9 is a longer" clampingscrew 16, the lower end of which bears against the rear portion of the bottom plate 8. The numeral 17 indicates a socalled fender which is preferably made of:

so-called stitching wire and is capable of being formed into position, but which will,

nevertheless, maintain its shape against light pressure, such as required to hold a sheet, or the like, in position for printing.

This wire fender is bent into a yoke-like form and its legs are passed through small perforations 18 in the clamping flange 12 and thence upward and rearward over the top of the clamping bar 15. When the screw 14 is tightened, the clamping bar 15 will pinch the wire fender and hold the same in whatever position of projection it may be set. The projecting loop of the fender may then be bent so that it will be the desired distance from the tympan.

In Fig. 7 the platen is indicated by the numeral 19 and the tympan sheet by the numerall20. This view also illustrates the manner in which three of the fenders will be located to hold in position a sheet 21,

which later is indicated by dotted lines in Fig. 7. The tympan sheet QO is also illustrated in Fig. 5. Here it will be noted that the gage is adapted to be anchored to this sheet by providing the sheet with a slit through which the front edge of the bottom plate 8 may be passed, as shown in said Fig. WVhen the screw 16 is then tight ened, the lower edge of the clamping flange 12 will be caused to pinch the upturned portion ofthetympan sheet between the same andthe front edge of the bottom .plate 8,

. f-easy =matter to accurately apply'the gages in position on the tympan sheet and to remove the same. The gage is always ready for use. The fender is a-perm'anent pa'rt of the gage and because of its simplicity and 'adjustability, may be very, easily set for holding various different kinds of work, such as paper sheets, envelope, articles to be embossed. The 'fender can be bent down, so that it will either lie very close to the tympan sheet when desired, or it can be bent up to adapt the gage to hold thereon articles to be printed. In the use of these improved gages, the stock can be .fed more regular, faster and with less tripping of the press and less waste of the stock-than with any of the devices hitherto used for the same purpose,.and it is free from the various objectionable fitting of such prior devices.

'What I claim is 1. A press gage comprising a bottom plate having upturned hinge cars, a top plate having downturned hinge ears pivot ally connected to the'hinge ears of said bot tom plate, said :topplate, at its front. edge having a depending clamping flange that overlaps the front edge'of said botto'nrplate to clamp an interposed portion of a tympan sheet,the said depending clamping flange having back turned end portions that cooperate with the front side edges of said bottom-plate to increase. the clamping action on the tympan sheet.

2. A press gage comprising a bottom plate having upturned hinge "ears, a top' plate having'downturnedhinge ears pivotally connected to the liingerears of said bottonrplate, said top plate, at its front'edge and a pliable wire fender passed through perforations in said clamping flange and passed between said clamping bar and said top plate,the ears of'said bottom plate hav ing projecting stop Jlugs that limitthe downward movement of the frontportion of said stop plate.

3. A press gage comprising.pivotally connected top and bottom plates having cooperating tympan clamping edges and means for adjusting said plates to cause the same to clamp the gage onto a tympan sheet, a fender made ofpliable material and adaptedto be bentto different forms and'to maint'ain any form into which it is bent, and anadjust'able clamp for adjustably securing the fenderto one of said plates.

l. A rpressi gage comprisingpivotally connected top andbottom plates having tymp an clamping edges and means for adjustin-g the'plates to cause the same to clamp the gage onto a tympan sheet, of an approxi mately '-Ushaped pliable wire-like fender, the legs of which are adjustably secured to said upperplate, said fender being adapted to'be-bent into different forms and to maintain any forminto which it is bent.

5. A press gage comprising pivot-ally connected top and bottom plates, the former of which has at its frontedge a depending flange that extends forward of the front edge of the bottom plate for cooperation therewith to clamp an interposed portion of a tympan sheet, and an adjusting device for the top plate.

6. Apresggage comprising pivotally connected top andbottom plates, the former of which has at its front edge a dependingflange that extends forward of the front edge of the bottom plate for cooperation therewith to clamp an interposed portion of a tympan sheet, an adjusting device for the top plate, a fender extending through apertures in the clamping flange, and a clamping device for securing the fender in respect to the top plate.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM H. BO'SER.

Witnesses BERNIGEG. BAUMANN, HARRY D. KILGoRE. 

